Results 41 to 50 of about 49,627 (206)
Geofluids, 2023 By taking the blasting excavation of a deeply buried karst tunnel in the North Tianshan Mountains in China as research objects, the damage induced by blasting excavation and seepage characteristics of deep rock under high seepage pressure was ...
Qian Dong +5 more
doaj +1 more source
Analysis and evaluation of fragment size distributions in rock blasting at the Erdenet Mine [PDF]
, 2015 Master's Project (M.S.) University of Alaska Fairbanks, 2015Rock blasting is one of the most important operations in mining. It significantly affects the subsequent comminution processes and, therefore, is critical to successful mining productions.
Dondov, Erdenebaatar +1 more
core
Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries [PDF]
, 2020 Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar between the No. 3 quarry of PJSC
Azarian, Volodymyr +5 more
core +1 more source
Geofluids, 2022 Complex geological conditions often make the blasting effect difficult to control. In order to explore the influence of soft-hard rock strata on rock blasting characteristics, based on PFC2D software, combined with particle expansion loading algorithm ...
Jianbin Cui +8 more
doaj +1 more source
USING NON-BLASTING TECHNOLOGIES FOR DESTRUCTION OF HARD ROCK IN SURFACE MINING [PDF]
, 2018 Determination the effective application field of non-blasting technology and technologies for the hard rock preparation for excavation during surface ...
DREBENSTEDT, Carsten +2 more
core
Improving rock classification in terms of explosivity [PDF]
, 2019 Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A +5 more
core +1 more source
Blasting Damage Model of Rock with Initial Damages and Its Application
Chemical Engineering Transactions, 2018 Rock is a material subject to initial damage. Rock blasting-induced damage model is the most commonly used constitutive model for numerical simulation of rock blasting.
Pingyuan Yang, Xiaoen Wu, Junhua Chen
doaj +1 more source
Shock and Vibration, 2022 The use of polyenergy water pressure controlled blasting technology in tunnel construction is gradually being promoted, and the technology is often used in hard rock, and the mechanism of rock breaking in fractured sandstone strata is still lacking ...
Qingbiao Wang +9 more
doaj +1 more source
Development of natural underground ore mining technologies in energy distributed massifs [PDF]
, 2019 The object of research is the technology and facilities for underground mining of ores in the disrupted massifs. One of the most problematic places is the formation of man-made voids; which influence the occurrence and redistribution of stress-strain ...
Golik, V. +3 more
core +4 more sources
Optimization of blasting parameters in opencast mines [PDF]
, 2007 Drilling and blasting are the major unit operations in opencast mining. Inspite of the best efforts to introduce mechanization in the opencast mines, blasting continue to dominate the production.
Parida, Chinmay Kumar, Rout, Manmit
core